You have chosen 'fragments/reports' by Posidonius, 'Review of Husserl's 'Phil of Arithmetic'' by Gottlob Frege and 'Theory of Science (Wissenschaftslehre, 4 vols)' by Bernard Bolzano
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Sources, or select a subheading: |
| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |